The core of Krashen's second language acquisition theory is the_____model.
monitor
P149
监测模式 （monitor model)是克拉申第二语言习得理论的中心。
The core of Krashen's second language acquisition theory is the_____model.
monitor
P149
监测模式 （monitor model)是克拉申第二语言习得理论的中心。
